"""import re
msg="[+456]12345678912 12345678912 5678945  s+12345 12345678911 abcxdd 1234 [+78]12345678912"
match=re.findall(r'(\[\+\d+\])?(\d{11})',msg)
print(match)"""
a=['1','2','3']
print(a[-1])